Caterpillar

Caterpillar Spare Parts Online Australia

Lucas Parts supplies genuine and aftermarket Caterpillar excavator parts to construction, mining, and earthmoving businesses across Australia. Whether you operate a Cat 320, 325, 330, 336, or larger mining class machine, we stock the components you need to keep your equipment productive and on site.

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About Caterpillar

Caterpillar Inc. is the world's largest manufacturer of construction and mining equipment, and one of the most recognised industrial brands on the planet. Headquartered in Irving, Texas, Caterpillar traces its origins back to 1925 when the Holt Manufacturing Company and the C.L. Best Tractor Co. merged to form the Caterpillar Tractor Co. — a union that brought together two of the most innovative agricultural and construction machinery pioneers of the early twentieth century.

The Caterpillar name itself is rooted in even earlier history. Benjamin Holt's track-type tractor, developed in 1904, earned the nickname "Caterpillar" from a photographer who observed that the machine's crawling track motion resembled that of a caterpillar insect — and the name stuck. Over the following century, Caterpillar grew from a California-based tractor manufacturer into a global industrial powerhouse with operations in over 190 countries, manufacturing everything from compact excavators and bulldozers to the world's largest mining trucks and diesel engines.

In Australia, Caterpillar has been a dominant presence on construction, mining, and infrastructure job sites for decades. Cat machines are renowned for their raw power, advanced technology, and exceptional durability in the harshest operating environments — from Queensland coal mines to Western Australian iron ore operations. With such a vast installed base of Cat equipment across the country, access to quality Caterpillar excavator parts and Cat spare parts is critical for keeping Australian operations running at full capacity.

Caterpillar Parts We Supply

At Lucas Parts, we stock a comprehensive range of Cat spare parts to suit excavators, bulldozers, wheel loaders, and other Caterpillar equipment — covering both current production models and older legacy machines. Our Cat parts inventory includes:

  • Undercarriage parts — track chains, track rollers, carrier rollers, sprockets, idlers, and track shoes for Cat excavators and dozers
  • Wear parts — bucket teeth, cutting edges, side cutters, heel shrouds, and bucket pins
  • Hydraulic components — hydraulic pumps, motors, cylinders, control valves, seals, and hoses
  • Engine parts — filters, belts, water pumps, fuel injectors, and gaskets for Cat C-series engines
  • Structural components — swing bearings, boom pins, arm pins, bucket link pins, and bushings
  • Ground engaging tools (GET) — adapters, tips, and wear plates for buckets and blades
  • Electrical parts — sensors, switches, ECM components, and wiring harnesses

Can't find the Cat part you need? Call our team on 1300 987 300 and we will source it for you.

Why Choose Lucas Parts for Caterpillar Spare Parts?

  • Australian stock — faster delivery, no lengthy international lead times
  • Competitive pricing — genuine and quality aftermarket options available at competitive rates
  • Expert advice — our team understands Cat machines and can help you identify the correct part for your model
  • Full warranty — all parts are inspected and covered before dispatch
  • Minimise downtime — Cat equipment is the backbone of many Australian operations; every hour off-site costs your business money

Genuine vs Aftermarket Caterpillar Parts — Which Should You Choose?

Caterpillar OEM parts are manufactured to the exact engineering specifications of your machine and are the guaranteed choice for maintaining peak performance and protecting your warranty. For critical systems such as hydraulic pumps, swing bearings, engine components, and electronic control modules, genuine Cat parts provide the precision fit and reliability that aftermarket alternatives cannot always match.

However, for high-wear consumable items such as bucket teeth, cutting edges, track shoes, filters, and undercarriage components, quality aftermarket parts offer a cost-effective alternative that can deliver equivalent performance at a significantly lower price point. This is particularly relevant for Australian operations running large fleets where wear part consumption is high and procurement costs are a major factor in total machine operating cost.

At Lucas Parts, we supply both genuine and premium aftermarket Cat parts, giving you the flexibility to make the right choice for each component based on criticality, budget, and your machine's operating conditions. Our team can advise you on the best option for your specific situation.

Caterpillar Models We Support

We supply parts for a wide range of Caterpillar excavator and heavy equipment models including:

  • Cat excavators — 308, 312, 315, 320, 323, 325, 330, 336, 340, 349, 374, 390, and 395 series
  • Cat bulldozers — D4, D5, D6, D7, D8, D9, D10, and D11 series
  • Cat wheel loaders — 930, 938, 950, 962, 966, 972, 980, and 990 series
  • Cat motor graders — 12M, 14M, 16M, and 24M series
  • Cat articulated trucks — 725, 730, 735, 740, and 745 series

Don't see your model listed? Contact us — we support a broad range of current and legacy Cat equipment and will do our best to source the parts you need.

Serving Construction and Mining Businesses Across Australia

Lucas Parts supplies Caterpillar spare parts to customers in Melbourne, Sydney, Brisbane, Perth, Adelaide, Darwin, and regional Australia including mining regions in the Pilbara, Hunter Valley, Bowen Basin, and Goldfields. We work with civil contractors, mining operators, earthmoving companies, plant hire businesses, and equipment dealers who need reliable parts supply with fast turnaround.

Browse our full Cat parts catalogue or contact our team today to discuss your requirements.

Frequently Asked Questions — Caterpillar Spare Parts

How do I find the correct Caterpillar part number for my machine?

The most reliable way is to locate your machine's serial number (found on the machine ID plate, typically on the cab door frame or main frame) and have it ready when you contact us. Our team can cross-reference your serial number against Cat's parts catalogue to identify the exact part number and confirm compatibility before you order.

Do you supply parts for older Cat models?

Yes. We supply parts for a wide range of current and legacy Caterpillar models. Older Cat machines such as the 320B, 320C, 325B, and 330C series remain widely used across Australia, and we stock or can source parts to keep these machines operational.

What is the difference between Cat OEM and aftermarket undercarriage parts?

Genuine Cat undercarriage parts are manufactured to OEM specifications and are the safest choice for maintaining resale value and warranty compliance. Premium aftermarket undercarriage parts from reputable manufacturers can offer comparable wear life and performance at a lower cost, making them a popular choice for high-hour machines or large fleets where undercarriage replacement is a recurring expense. Our team can help you evaluate the best option for your situation.

How long does delivery take?

Delivery timeframes depend on your location and whether the part is in local stock or needs to be sourced. We will always provide you with a clear lead time before you confirm your order so there are no surprises.

Are your Cat parts covered by a warranty?

Yes. All parts supplied by Lucas Parts carry a warranty. Speak to our team for specific warranty terms applicable to the part you are purchasing.

Can I order Caterpillar parts online?

Yes. You can browse and order through our website at lucasparts.com.au, or call us on 1300 987 300 for personalised assistance.



$240.00 $175.00

SKU: ORSB10105

O-Ring Seal Box Caterpillar

$1,950.00

SKU: HCAA03103

Arm Cylinder Assembly CAT301.7

$3,000.00

SKU: HCAA03107

Arm Cylinder Assembly VIO30

$1,950.00

SKU: HCAL03103

Boom/Lift Cylinder Assembly CAT301.7

$2,750.00

SKU: HCAB03106

Bucket Cylinder Assembly CAT301.7

$2,600.00

SKU: HCAB03104

Bucket Cylinder Assembly CAT303CCR

$4,400.00

SKU: HCAB10102

Bucket Cylinder Assembly CAT312D

$4,000.00

SKU: HCAB06107

Bucket Cylinder Assembly CAT307D CAT307E

$5,800.00

SKU: HCAB20112

Bucket Cylinder Assembly CAT320C CAT324

$6,200.00

SKU: HCAB20106

Bucket Cylinder Assembly CAT320D CAT323D

$7,300.00

SKU: HCAB20107

Bucket Cylinder Assembly CAT325D CAT329D

$6.50 $5.00

SKU: BTSP20104

Bucket Tooth Side Pin CAT325 J400 Series (Pin and Retainer)